1220110110205 has 16 divisors (see below), whose sum is σ = 1679960386944. Its totient is φ = 833313672000.

The previous prime is 1220110110173. The next prime is 1220110110227. The reversal of 1220110110205 is 5020110110221.

It is not a de Polignac number, because 1220110110205 - 2⁵ = 1220110110173 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69434022 + ... + 69451591.

It is an arithmetic number, because the mean of its divisors is an integer number (104997524184).

Almost surely, 2^{1220110110205} is an apocalyptic number.

It is an amenable number.

1220110110205 is a deficient number, since it is larger than the sum of its proper divisors (459850276739).

1220110110205 is a wasteful number, since it uses less digits than its factorization.

1220110110205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138885876.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 1220110110205 its sum of digits (16), we get a palindrome (1220110110221).

Adding to 1220110110205 its reverse (5020110110221), we get a palindrome (6240220220426).

The spelling of 1220110110205 in words is "one trillion, two hundred twenty billion, one hundred ten million, one hundred ten thousand, two hundred five".